.bash/genpasswd.sh

   1 #! /usr/bin/env bash
   2 #
   3 # genpassword.sh
   4 #
   5 # Distributed under terms of the GPLv3 license.
   6 #
   7
   8 _help () {
   9     echo "genpasswd.sh: A Password Generator\n
  10     Usage: genpasswd.sh [length] [count]\n
  11     e.g.
  12     genpasswd.sh 16 5"
  13     exit 0
  14 }
  15
  16 [[ "$1" -gt 0 ]] && _length=$1 || _help
  17 [[ "$2" -gt 0 ]] && _count=$2 || _count="1"
  18
  19 _genpasswd () {
  20     local _strings="[:alnum:]!@#$%^&*(){}"
  21     LC_ALL=C tr -dc $_strings < /dev/urandom | head -c $_length | xargs
  22 }
  23
  24 for ((counts = 1; counts <= "$_count"; counts++))
  25 do
  26     _genpasswd
  27 done